var intDiff = parseInt(10);//倒计时总秒数量
function timer(intDiff){
	var date = new Date();
	var time = date.getTime();
	alert(time);
    window.setInterval(function(){
	    var day=0,
	        hour=0,
	        minute=0,
	        second=0;//时间默认值        
	    if(intDiff > 0){
	        day = Math.floor(intDiff / (60 * 60 * 24));
	        hour = Math.floor(intDiff / (60 * 60)) - (day * 24);
	        minute = Math.floor(intDiff / 60) - (day * 24 * 60) - (hour * 60);
	        second = Math.floor(intDiff) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);
	    }else{
	    	$('#over').show('slow');
	    }
	    if (minute <= 9) minute = '0' + minute;
	    if (second <= 9) second = '0' + second;
	    $('#day_show').html(day+"天");
	    $('#hour_show').html('<s id="h"></s>'+hour+'时');
	    $('#minute_show').html('<s></s>'+minute+'分');
	    $('#second_show').html('<s></s>'+second+'秒');
	    intDiff--;
    }, 1000);
} 
$(function(){
    timer(intDiff);
}); 